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Yes tegretol may cause drug induced lymphadenopathy. This may cause moderate to marked enlargement of the lymph nodes. A fine needle aspiration biopsy will diagnose this condition and also rule out other conditions causing lymphadenopathy. Please consult with your doctor and have this investigation done.
Below is the link from one of the foremost book of lymph node pathology:
Also please refer the below link:
There are many more case reports and studies showing that it does cause lymphadenopathy.
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